Glossary

Hot Wallet

Plain-language definition Crypto glossary

Key takeaways

A hot wallet is a crypto wallet whose private keys are stored on an internet-connected device, such as a phone, browser extension or exchange account, making funds quick to access.
Because the keys live on a connected device, a hot wallet can sign and broadcast transactions instantly, but that same connectivity exposes it to malware and phishing.
Hot wallets suit funds used regularly, while larger long-term holdings are usually safer in offline cold storage.

Definition

A hot wallet is a crypto wallet whose private keys are stored on an internet-connected device — a phone, browser extension or exchange account — making funds quick to access.

How it works

Because the keys live on a connected device, a hot wallet can sign and broadcast transactions instantly without extra steps. That connectivity is its convenience and its weakness: anything online is reachable by malware and phishing in a way that an offline cold wallet is not.

Why it matters

Hot wallets are well suited to the funds you use regularly, much like cash in a pocket, while larger long-term holdings are usually safer in cold storage. A common practice is to split holdings between a small hot wallet for spending and cold storage for savings.

Example

A mobile wallet app you use to pay for things day to day is a hot wallet.

FAQ

Frequently asked questions

How is a hot wallet different from a cold wallet?

A hot wallet keeps its private keys on an internet-connected device, so transactions are fast and convenient but more exposed to online threats. A cold wallet keeps keys offline, which is more secure but less convenient for frequent use.

Is it safe to keep money in a hot wallet?

A hot wallet is reasonable for the smaller amounts you use day to day, much like cash in a pocket, but anything online is reachable by malware and phishing. A common practice is to split holdings, keeping a small amount in a hot wallet for spending and larger savings in cold storage.

What counts as a hot wallet?

Any wallet whose keys sit on a connected device qualifies, including mobile wallet apps, browser extension wallets, and funds held in an exchange account. If it can sign and broadcast a transaction instantly while online, it is a hot wallet.